Confusion on using LognormalDistribution in Mathematica

 Confusion on using LognormalDistribution in Mathematica

I would like to use LogNormalDistribution[mu, sigma] based on some data that I have. Roughly speaking, would I need to take the Log of this data’s y-values and then calculate the mean and standard deviation to sub in for mu and sigma above, or can I just calculate mu and sigma directly from the data and sub in to Mathematica’s function?

Thanks.

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